An elevator is going down with a constant acceleration. A coin dr… - Vidyadip

MCQ

An elevator is going down with a constant acceleration. A coin dropped from a point $1.8m$ above the elevator floor takes one second to reach the floor. The magnitude of the acceleration of the the elevator in $ms^{-2}$ is: Given: $g = 10\ ms^{-2}$

A
$3.6$
B
$5$
C
$7.2$
✓
$6.4$

✓

Answer

Correct option: D.

$6.4$

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